The leaders of the demons thought it unwise to hold the tail, the inauspicious portion of the snake. Instead, they wanted to hold the front, which had been taken by the Personality of Godhead and the demigods, because that portion was auspicious and glorious. Thus the demons, on the plea that they were all highly advanced students of Vedic knowledge and were all famous for their birth and activities, protested that they wanted to hold the front of the snake.
The demons thought that the front of the snake was auspicious and that catching hold of that portion would be more chivalrous. Moreover, Daityas must always do the opposite of the demigods. That is their nature. We have actually seen this in relation to our Kṛṣṇa consciousness movement. We are advocating cow protection and encouraging people to drink more milk and eat palatable preparations made of milk, but the demons, just to protest such proposals, are claiming that they are advanced in scientific knowledge, as described here by the words svādhyāya-śruta-sampannāḥ. They say that according to their scientific way, they have discovered that milk is dangerous and that the beef obtained by killing cows is very nutritious. This difference of opinion will always continue. Indeed, it has existed since days of yore. Millions of years ago, there was the same competition. The demons, as a result of their so-called Vedic study, preferred to hold the side of the snake near the mouth. The Supreme Personality of Godhead thought it wise to catch hold of the dangerous part of the snake and allow the demons to hold the tail, which was not dangerous, but because of a competitive desire, the demons thought it wise to hold the snake near the mouth. If the demigods were going to drink poison, the demons would resolve, “Why should we not share the poison and die gloriously by drinking it?”